Can dogs eat fish (general)?
Last updated 2026-05-08 · Sourced from ASPCA & Merck Veterinary Manual
The short answer
Sometimes — with caution — dogs should only have small amounts of fish (general). Cooked yes; raw debated Various fish species commonly eaten by humans.
Why be careful
Cooked plain fish (salmon, tuna, cod, etc.) is safe and rich in omega-3s. Raw fish can contain parasites — Pacific salmon especially carries the deadly Salmon Poisoning Disease parasite.
Symptoms to watch for
Raw salmon: vomiting, fever, swollen lymph nodes — fatal if untreated.
What every dog owner should know
- Always cook salmon thoroughly
- Remove all bones — fish bones are dangerous
- Tuna in moderation — high mercury
What to do if your dog ate fish (general)
- Stay calm and assess how much was eaten and when.
- Call your vet or ASPCA Animal Poison Control at 888-426-4435 (consultation fee may apply).
- Alternatively, Pet Poison Helpline: 855-764-7661.
- Do not induce vomiting unless explicitly instructed by a vet.
- Have product packaging or the food itself ready to describe to the vet.
Puppy safety
Generally avoid feeding fish (general) to puppies. Their digestive systems are still developing and they're more sensitive to changes in diet, fat, sodium, and lactose than adults. If you've already given some, watch for vomiting, diarrhea, or lethargy and contact your vet if any appear.
What to do if your dog ate fish (general)
- Note how much was eaten and when. A small amount is rarely an emergency, but a large quantity may need vet attention.
- Watch for symptoms over the next 12–24 hours: vomiting, diarrhea, lethargy, loss of appetite, or changes in drinking/urination.
- Provide fresh water and skip the next meal if your pet seems unsettled — let their stomach calm down.
- Call your vet if symptoms appear or persist beyond 24 hours, or if the amount eaten was significant.
Better alternatives
If your dog likes fish (general), they may also enjoy these safe options: